DE2030880A1 - Barrier mesh fabric and process for its manufacture - Google Patents

Description

Barrier mesh fabric and method of its Manufacturing

The invention relates to a barrier mesh and a method for its manufacture, in which weft yarn in loop or "hairpin" shape in successive warp compartments as shown in U.S. Patent 3,403 is shown.

One known method for tying in the weft loops is in that each weft loop through the previous one Weft loop is drawn to form a warp of weft loops on one edge of the fabric. This method creates a thick bead on the knitted edge, and the fabric can be teased in one direction. These The type of selvedge is illustrated in U.S. Patent 3 102 557. '

A second method is to use a catch thread that is routed to contact a reciprocating knitting needle on the edge of the fabric. This needle enters the weft loops and draws or pulls a loop of the thread catcher Äurch the weft loop · The solid loop is held by the shank of the needle, "if this successor in a

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The Schusaach loop occurs. Then the needle pulls one Second loop from the catch thread through the subsequent Schusaachleife and through the first catch thread loop, the is now removed from the needle »By continuing the-. sea process becomes a knitted chain of pang thread loops that runs through the shoe loops to hold them together. This process produces a fabric that does not have an uncomfortable bulge, but is not tear-resistant. This method is in the United States patents 1 296 025 and 1 604 365 illustrated.

In order to produce a trickle-resistant fabric, up to now a third method is used in which the aforementioned two methods are combined with one another. In this process, both the catch thread and the weft loop are fed into the hook of the knitting needle and pulled through the previous combined loop consisting of weft thread and catch thread. This method produces a trickle-resistant fabric and selvedge, but leads to an even wider bead than the aforementioned first procedure. This method is illustrated in U.S. Patent 2,800,927.

The main task underlying the invention is to be seen in the production of a tear-resistant fabric _T in which the weft thread and the selvedge cannot be unraveled without creating a bulge that is highly unpleasant

According to the invention, this new fabric is distinguished by a variety of warp threads, through a variety of with the Warp threads intertwined in weft yarn loops, which are used to form: a knitted selvage through an adjacent .. sanding « run, and through a catch thread from which parts are

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Fences can only be shaped with selected Schuaaach loops have worked together »

A method is advantageously used for this dent; the end of each entered weft loop to form a knitted selvage through the previously entered Weft loop pulled through and a catch thread looped that are only worked with selected of the weft loops

The object of the invention is thus achieved with the aid of one Method in which on the one hand the loop ends each Weft thread «, and .on the other hand, a catch thread is periodically combined with some of the weft loops · A good example of a fabric after the The genre-iss method of the invention is one in which, together with every second weft loop, a catch thread loop is created is formed, whereby the catch thread runs through the other oehussach loops like a floating thread By reducing the number of catch thread loops the selvedge bead for a given number of weft loops further reduced and the fabric is kept resistant despite being cleaned up »

The invention is illustrated in the accompanying drawings, for example, and will be described below with reference to this drawing in detail · In the drawings:

1 shows a schematic plan view of a device according to the invention manufactured fabric that the knitting needle at the beginning of pulling a weft loop through a made from a weft loop and the catch thread previous loop illustrates

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Pig 2 is a view corresponding to FIG 1, which illustrates the pulling of a weft loop and a catch thread loop through the previous weft loop,

3 a schematic representation of a first variant]) in which every third weft loop contains a catch thread loop,

Fig. 4- is a view corresponding to Fig. 3, showing a second

Variant illustrated in which a catch thread loop is formed with every fourth weft loop will, and

5 is a view corresponding to FIG. 3, which illustrates a third variant in which, with alternating weft loop pairs, catch thread loops' to be formed

The novel fabric is shown schematically in FIGS. 1 and 2 and is made from warp thread denoted by W as well as from loops of a continuous weft thread denoted by L. the left side beyond the fabric · To form a ait K denoted knitted selvedge warp runs each Schuesach loop end through the previous weft loop

With some of the weft loop ends is a continuous one Catch thread C linked or knitted between the Loops of fishing thread runs or lies afloat, the float cells being denoted by F As shown in FIGS. 1 and 2, becomes a loop of thread with every second eye loop formed or interacted with itThe fabric is, despite the fact that not every weft loop is a catch

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thread loop is formed, tear-resistant · When the in Pig »1 weft loop labeled 10 pulled to the left it slips out of the next weft loop 12 Further pulling on the weft thread causes the loop 12 to contract and wrap around the catch thread loop 13 pulls tight · Another pull on the weft thread causes the weft loop 12 to pass through the catch thread loop 13 the previous weft loop 14 pulls · The loop 13 becomes not pulled very far through the loop 14, since one leg of the loop 13 goes down to the next lower one Catch thread loop 15 runs through which the Weft loop 12 extended every further pull on the Catch thread loop 13 caused by the weft loop 12, that the catch thread loop 15 is tightly tied around the weft loop 12 'so that the weft loop 12 is blocked will·

The method of making that shown in Figs Fabric consists in making successive loops from a continuous weft thread into successive one Warp compartments are entered, with each Schuasach loop on the edge opposite the weft insertion side the previous SQhussschleife is worked together in such a way that the knitted selvage K is created »The weft loops are with the help of a designated 16. Schusaeintragvorrichtung entered and on the opposite side of the entry Side of the fabric with the help of a knitting needle marked 18 intertwined. U.S. Patent 3,403 illustrates the weaving steps just described in FIG their. Details and also shows the interaction a catch loop with every Schuasach loop

According to the present invention, a fangiade guide is used as required 20 actuated »to put the catch thread in position

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bring it through the 7 / circle needle depending on the circumstances recorded or not.

Pig. 1 and 2 illustrate the preferred method for Interaction of a pang thread loop with every second weft loop · In Pig. 1 is the catch thread G in its ineffective Position shown in which the knitting needle only picks up the weft loop 22 and is about to take them through the previously formed weft loop 10 and the pang thread loop 13 to draw. Between the representations after Pig. and Pig. 2 the catch thread C is in its effective position At the next weft insertion, the V / irknadel is raised up ad das3 18 the catch thread C and the newly registered Schuasach loop 24 picks up · The catch thread and the Weft loop 24 pulled through weft loop 22. Of the the cycle of operation just described is repeated so that the resulting fabric has a knitted selvedge, at which every second weft loop interacts with a catch thread and the rest of the knitted weft loops consist only of one weft loop.

pig. 3 shows a first variant in which every third weft loop is interacted with a catch thread, while the other weft loops consist only of the weft thread » As can be seen from Fig. 3, those are made of catch thread and weft thread existing combined weft loops with 26 and the weft loops without catch thread with 28.

Pig. 4 shows a second variant in which the catch thread is knitted together with every fourth weft loop, while the remaining weft loops are formed only from the weft thread. The combined weft loops consisting of catch thread and weft thread are 30 and the weft loops without Denoted by 32 catch thread.

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■ Pie · ί? shows a third variant, with de, r the catch thread alternating basis with two successive weft loops cooperated on the two successive ones Follow schu3S3 loops without a catch thread. The ones made of fishing thread and weft thread combined weft knitting loops are denoted by 34 and the knitted hoops consisting of only one weft thread are denoted by 36

The fabrics produced according to the first and second variant lock when attempting to access fine not as fast as with the preferred embodiment, but the difference is only a shot or two in all embodiments the unraveling of the sewing fabric or the selvedge itself does not go very far until the opening or locking occurs of knitted loops

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Claims (7)

Claims ι 1. Woven flap resistant fabric, featured by a multitude of warp threads (W), by a multitude of weft yarn loops intertwined with the warp threads (L), which each run through an adjacent loop to form a knitted selvage, and through a catch thread (C), parts of which are formed into loops that are only combined with selected weft loops are worked 2, fabric according to claim 1, characterized in that the Catch thread loops bit alternating weft thread loops have worked together 3 · fabric according to claim 1, characterized in that the Thread loops are combined with every third weft loop 4 · fabric according to claim 1, characterized in that the Catch thread loops are interacted with alternating pairs of weft loops 5. Fabric according to claim 1, characterized in that the catch thread loops interact with every fourth weft loop are· 6 · Method of making a fabric from in successive Warp fan registered weft yarn loops, in which these weft yarn loops at the Shoe entry side opposite edge of the fabric be incorporated to form a tear-resistant fabric, in particular according to one of claims 1 to 5 » characterized in that the end of each registered 109808/1280 b Schuasach loop (L) to form a knitted selvedge pulled through the previously registered Schuaaach loop and a catch thread (C) is formed into loops, which can only be used with selected one of the Schuaa soles. worked together will· 7. The method according to Anapruch 6, characterized in that daaa the catch thread loops with alternating Schuaaaohleifen be worked together » Method according to Anapruch 6, characterized in that daaa the catch thread loops with every third Schuaaach loop be cooperated. 9 · Method according to Anapruch 6, characterized in that the catch thread loops with every fourth Schuaaach loop - be worked together. 10 «Method according to Anapruch 6, characterized in that» the catch thread loops with alternating Schuaaaohleifenp aar en be worked together. MB / Egg - 22 328 9808/1200